Feed-water heater.



No. 639,522. Patented Dec. l9, I899.

' L. CARRER.

FEED WATER HEATER.

(Application filed Aug. 8, 1899.) v V 6N0 Model.) 2 Sheets-Shoet l.

"m: Norms PETERS cu. PHOTO-LYING WASNINGTON. 0. c.

No. 639,522. Patented Dec. l9, I899.

L. CARRER.

FEED WATER HEATER.

(Application filed Aug. 8, 1899.)

2 Sheets- 8min 2,

{No Model.)

.Tnr: NORRIS Pzrzas o0 vnorouma, WASNINGTON. a4 a.

LEO CAREER, OF DUSSELDORF, GERMANY.

FEED-WATER HEATER.

SPECIFICATION forming part of Letters Patent No. 639,522, dated December 19, 1899.

Applicationfiled August 8 1 8 9 9.

To all whom it may concern:

Be it known that I, LEO CAREER, engineer, a citizen of the German Empire, residing at Friedrichsstrasse, D usseldorf, in the Province of the Rhine, Germany, have invented certain new and useful Improvements in and Relating to Feed- Water Heaters for Steam-Boilers; and I do hereby declare the following to be a full, clear, and exact description of the inven tion, such as will enable others skilled in the art to which it appertains to make and use the same.

Myinvention relates to an improved device for heating the feed-water of steam-boilers by the utilization of the otherwise waste steam exhausted after use, the particular construction and arrangement of same being shown in the accompanying drawings, of which- Figures 1 and 2 are vertical sections taken upon the lines A B and E F, respectively, of Fig. 3. Figs. 3 and 4 are horizontal sections taken upon the lines 0 D and G H, respectively, of Fig. 2.

My invention consists of a metallic base A, upon which is mounted a preferably cylindrical case B, inclosing a second and like but smaller case 0, the upper ends of B and C being inclosed by a removable but steam-tight lid or cover D.

Within the casing 13 are any number of (preferably four) metallic or other tubes E E E E placed in any suitable position, but preferably such that the axial centers of these occupy the positions of the four corners of a square figure, the outer surfaces of the said tubes being provided with any number of annular extensions, wings, or louvers a, or a spiral projecting surface in lieu of these, their object being to increase the heating area upon the outside of the said tubes. The lower and reduced ends of the said tubes are bolted or otherwise fixed to the base A, their hollow interiors being by means of passages h b in communication with a circular or other shaped chamber F formed in the said base. The upper and reduced ends of the said tubes are bolted or otherwise connected to a circularmetallic casing G, divided into two distinct chambers H and H by means of an inner wall G and partitions J and J, the said casing being arranged to provide the same number of water-tanks as there are tubes below, pre- $erial No.- 726 .590. QNO model.)

sumably four, two of the said tanks K and K being in the chamber H and in connection with a water-supply conduit 0, while the other two, L and L, arein the chamber H and are connected to an exhaust-pipe 61, leading to the feed of the boiler, the said tanks being arranged in such positions that their lower ends coincide and communicate with the upper ends of the tubes E, E, E and E The upper ends of the said water-tanks are closed by a preferably steam-tight cover M, having a central aperture c opening into the chamber formed by the Wall G,whilein the lower end of this chamber is an aperturef, opening into the casing B in the center of the space between the tubes E, E, E and E. In each of the said tubes is placed a rod N, having upon its lower end a disk g, which normally rests upon the shoulder formed by and closes the narrowed way in the lower end of its respective tube, the upper end of each of the said rods being provided with a'hand hold h, by means of which the said rods or any one of these may be raised and withdrawn for cleaning purposes when the coverD is removed. Upon the said rods are mounted disks or plates P, each convex upon its upper surface, these being (like the chamber F) for the collection of calcareous deposits of the feed-water, which said deposits, in so far as relates to the said disks, maybe removed by raising the rods N, while as relates to the chamber F this is arranged for emptying and washing or otherwise cleaning out by the means of a pipe or pipes B, Fig. 4.

Apassage S is formed in the base A, which passes through a portion of the chamber F and leads into a chamber T in the center of and formed by the chamber F and opening into the case 13, and through the said passages in the direction of the arrow would pass the exhaust steani after use, which, entering the chamber T, would pass up into the casing B and flow around the tubes E, E, E and E as indicated by the curved arrows, and so convey its heat to them, the said steam eventually passing up through the apertures f and a into the cover D, thus heating the watertanks K, K, L, and L, from whence it passes, as indicated by the arrows, out into the cover D and down between the cases B and G into a chamber V in the base A and exhausts through an aperture m, thus in its course also heating the casing B and the base A. The feed-water would enter through the cockgoverned water-conduit 0 into the tanks K and K and would flow from these into the tubes E and E,into the chamber F, and rise in the tubes E and E into the tanks L and L and flow from these through the feed-water injector or other conduit (Z, the said feedwater thus becoming heated by first passing through the heated passages K K, E E, F, E E and L and L to the boiler.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is- 1. In a feed-water heater, the combination with a hollow cylindrical casing closed at its upper end; a second smaller casing inclosed by said casing; a base supporting the said casings provided with entrance and escape passages for the steam and a water-chamber surrounding the same, and a steam-jacket surrounding said watenjacket communicating with the escape-passage and the space between said cylindrical casings; vertical tubes supported upon said base, the interior of said tubes communicating with said waterspace in said base, said tubes being provided with means for collecting deposits and agitatin g the water in passing therethrough; and a circular casing secured to the upper ends of said tubes provided with a steam-passage through its center and water-chambers at each side communicating with said vertical tubes each provided with a pipe passing through the outer casings, the said chambers being divided from each other by means of a partition, substantially as described.

2. In a feed-water heater, the combination with a hollow cylindrical casing closed at its upper end; a second smaller casing inclosed by said casing; a base supporting the said casings provided with entrance and escape passages for the steam and a water-chamber surrounding the same, and a steam-jacket surrounding said water-jacket communicating with the escape-passage and the space between said cylindrical casings; vertical tubes supported upon said base, the interior of said tubes communicating with said waterspace in said base, said tubes being provided with rods extending longitudinally thereof and provided at intervals with scoop-shaped disks and with solid disks upon the lower ends, seated upon the shoulders formed by the narrowing of said tubes at their bottoms; and a circular casing secured to the upper ends of said tubes provided with a steampassage through its center and water-chambers at each side communicating with said vertical tubes each provided with a pipe passing through the outer casings, the said chambers being divided from each other by means of a partition, substantially as described.

In testimony whereof I alfix my signature in presence of two witnesses.

LEO CAREER.

\Vitnesses:

WILLIAM EssENwEIN, Geo. P. PETTIT. 

